Refactor command YAML headers: replace examples with argument-hint

**Summary:**
Updated all 62 command files in `.claude/commands` directory to improve parameter documentation clarity by replacing `examples` field with descriptive `argument-hint` field.

**Changes:**
- Added/improved `argument-hint` for all commands based on usage patterns
- Removed `examples` field and all example items from YAML headers
- Maintained all other YAML fields (name, description, usage, allowed-tools)
- Deleted obsolete commands: workflow/issue/*, workflow/session/pause.md, workflow/session/switch.md
- Cleaned up temporary analysis files

**Rationale:**
The `argument-hint` field provides clearer, more concise parameter documentation than example lists, improving command discoverability and usability in the Claude Code interface.

**Files Modified:** 62 command files
**Lines Changed:** -1570 insertions, +192 deletions

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.claude/commands/workflow/brainstorm/auto-squeeze.md

@@ -3,10 +3,6 @@ name: auto-squeeze
 description: Orchestrate 3-phase brainstorming workflow by executing commands sequentially
 usage: /workflow:brainstorm:auto-squeeze "<topic>"
 argument-hint: "topic or challenge description for coordinated brainstorming"
-examples:
-  - /workflow:brainstorm:auto-squeeze "Build real-time collaboration feature"
-  - /workflow:brainstorm:auto-squeeze "Optimize database performance for millions of users"
-  - /workflow:brainstorm:auto-squeeze "Implement secure authentication system"
 allowed-tools: SlashCommand(*), TodoWrite(*), Read(*), Bash(*), Glob(*)
 ---
 
@@ -255,4 +251,4 @@ Return summary to user
 ✅ Update TodoWrite after each role completion
 ✅ Execute Phase 3 (synthesis) after all roles complete
 ✅ Validate synthesis-report.md exists
-✅ Return summary with all generated files
+✅ Return summary with all generated files